Unanswered Questions
754 questions with no upvoted or accepted answers
30
votes
0
answers
860
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Definitional Returns. Solved. Mostly
I have made the bold claim that a longstanding problem in Rebol is "now solved"...that of "definitional returns".
But of course, such claims need some peer review, and there's always some new trick ...
CommunityBot
- 1
23
votes
0
answers
668
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Multiplying big numbers using Karatsuba's method
The Karatsuba algorithm, first published in 1962, aims to speed up the multiplication of big numbers by reducing the number of 'single-digit-multiplications' involved.
Because of its complexity (...
- 4,773
8
votes
0
answers
129
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Stable variation of built-in sort
Ruby's built-in sorts are unstable. The stable_sort gem monkey-patches Ruby's built-in library to have stable sorts which include nearly all the functionality of the built-in sorts, but with the ...
- 3,284
8
votes
0
answers
133
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Simulation of a mechanical arm
The code that I am doing is to simulate a scenario where a mechanical arm search pieces closer and these pieces selected the mechanical arm leaves in a position defined closer.
...
CommunityBot
- 1
7
votes
0
answers
444
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C# Generic high performance vectorized math operations
I'm writing a library which simplifies the usage of intrinsics in C#.
It's a generic library which supports all numeric types.
The goal of this library is to perform these operations at the highest ...
7
votes
0
answers
758
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Unity3D shader for rendering 2D sprites with a pseudo-glitch effect
I'm making a puzzle game in Unity with sprite-based graphics. When the game is paused, I want to hide most game elements, because I don't want the player to be able to pause and leisurely think about ...
- 35k
7
votes
0
answers
164
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Modeling tabular structure in MSSQL to store data like Excel sheet applying Column inheritance
I've created this database structure to store tabular information (it's a simplification of my real structure but enough to show the point). In it I have Sheets and ...
7
votes
0
answers
569
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Red-black tree appears to be slower than std::multimap
I've written a red-black tree in C as an exercise. The tree works and it is not bad, but it is about 10% slower than std::multimap from libstdc++ which I'm ...
- 145k
7
votes
0
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4k
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React Native - Rendering different scenes based on application state
I am using react-native-router-flux to organize the routes for my application. Using Firebase, I am able to call ...
- 29.1k
6
votes
0
answers
107
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Optimizing SymPy Implementation of prime factorization in form of QUBO
I'm trying to reproduce a paper on Prime Factorization. This paper converts the problem into a QUBO form, which then we can map it to an Ising Minimizer. I've basically done everything and I've ...
- 85k
6
votes
0
answers
59
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React state management design pattern new approach thoughts
Hey people on the internet!
I do not know where to share my new npm package so I am asking you do you know of a good place to share my package?
Also I would really appreciate if you take a look on it ...
- 161
6
votes
0
answers
308
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Chart Based Animations In Excel VBA
I've been working on re-writing comfortablydrei's answer to this PPCG Question regarding creating a illusion animation in pure Excel VBA. So far, I've been able to rewrite the code to function in VBA, ...
- 340
6
votes
0
answers
107
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4×4 cofactor in SSE
The cofactor of a 4×4 matrix can be used to convert a "regular geometry" matrix into the matrix that transforms the normals. It's an alternative to the common inverse-transpose pattern. In this post I ...
- 11.3k
6
votes
0
answers
148
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Julia set in Julia (and other fractals)
I've made the following to draw a series of zooming in images of a fractal.
...
- 3,687
6
votes
0
answers
146
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How to speed up simple linear algebra optimization probelm in Julia?
I implemented the LSDD changepoint detection method decribed in [1] in Julia, to see if I could make it faster than the existing python implementation [2], which is based on a grid search that looks ...
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